I’m looking at doing this exact combo. If my math is right and eibach specs are right, it should be about a half inch higher in the rear. Did the 2nd clip end up giving you the advertised 3.4” up front? I definitely don’t want the rear sitting way higher than the front with the added 3/4”, although yours seems to be level. Where did you end up getting the rear 3/4” spacers, they aren’t easy to find.
I definitely didn't get 3.4" of lift up front. More 3.00" You can get the spacers through Cornfed or Jason Burtman who is on this site. Jason is great and can make you any custom size you want. I added the spacer because I already had it on my stock pro suspension. I knew 1" wasn't going to be enough for me in the rear. Ryan runs the second clip on his personal rig. I also plan to add a little weight up front with the C4 lo pro bumper. CV angles look great and truck rides great. Granted I'm not running E load tires. I did that on my 3rd gen. Never again for a DD. Ultimately I'll likely go with a 2" rear spring, possibly Eibach's new rear adjustable setup.